Mining apparatus



MINING APPARATUS Filed Dec. '7, 1923 mgm Yy f side and mounted on a skid of improved form 7. In my lmproved construction it Will be observed that a mine surface engaging shoe or skid 19 is provided preferably having upturned curved front and rear ends 20 and slightly upturned curved sides 21 to permit a Vfree sliding movement ot the bottom late on the surface ot' the coal strata or re ative to a. transport truck (not shown). As shown, a pair of angle members 22 is disposed'longitudinally beneath the side of the miningkmachine 1 at the desired distance apart and rigidly connected to the latter by means of suitable screws 23, while operative- 1y connected between the depending portion ofthe right hand angle 22, herein by rivets 24 (see Iig. 2) is an intermediate support herein .in the form of another angle iron 25 likewise longitudinally disposed, while the left vhand angle member 22 is rigidly connected by means of rivets 26 to a vertically disposedplate 27 suitably seeuredto the bottom plate 6 of the mining machine and to an intermediate supporting angle member 28V disposed parallel with the member 25. Hereinit Will be noted that the angle membersV 25 and 28 .are rigidly secured to the bottom plate 19, preferably by rivets 26. It will further be noted lthat 1a plurality of brace members29, hereinthree, are disposed between the vertically disposed bottom plate 6 of the machine and the skid bottom plate 19 being rigidly connected thereto by means of Screws andrivets 30 and 31 respectively. It Will be observed that the bottom -plate 19 and the angle members 22, 25 and 28 form an opening 32 extending longitudinally be-v neath'the machine through which the feed ohain passesv during the barl swinging operation'. Y

- As .a result of my improved construction, it will be evident that it is possible to provide a support for a mining,machine constructedto Work in accordance with the stri or yopen pit system oi mining and Whicli is exceedingly simple and rugged and manufactured at a minimum ot' expense. These and other advantages will be clearly appa-rent to those skilled in the art.

While Ii-have in this application specifically described one form which my invention'may assume in practice, it will be understood that this form ot the samel is shown for posed inand mounted for movement in a vertical plane, said cutter bar being provided withzcutting elements arranged to cutoa. kert to admit saidbaiyand feeding means therefor, and supporting means tor said machine comprising a sid having machine support ing portions providing an opening between the skid and said machine through which a portion ot said feeding means is adapted to be extended at will.

2. In a mining apparatus, a mining machine normally cutting on its own bottom and provided with an elongated cutter bar having cutting elements arranged to cut a kerl' to admit said bar, and means for operating said machine with its bottoni in a vertical plane coniprising a bottom eiwagiiig skid upon which the side ot' the macliine is immovably secured.

3. In a mining apparatus, a mining machine normally cutting on its own bottom and provided with an elongated cutter bar having cutting elements arranged to cut a hert to admit said bar, and means for operating said machine with its bottom in a vertical plane compre-dug an intermediate support on which the side ot `said machine is immovably secured and a bottom plate slid able oli the mine bottom.

4. In a mining apparatus, a mining muchine normally cutting on its own bottom and means Vfor operating said machine with its bottom in a `vertical plane comprising a bottom plate tori'ning a. sliding bottom engaging support, an intermediate support attached thereto, and a plurality oi longitudinally spaced bracing members disposed bctwcen said machine and said bottom plate.

5,. In a mining apparatus, a mining ina-- el ine ha fing a pivoted cutter bar niovable in a vert-ical plane, means for swinging said har including a flexible element, and supporting means for ksaid n'iachine comprising a shid having an opening through which said flexible element passes.

6. In a lmining apparatus, a mining machine normally -slidable on its own bottom operating as an under cutter, said machine having elongated cutter bar provided with cutting elements arranged to cut a kerf to admit said bar, and means for supporting said machine with its bottom in a vertical plane for operation as a vertical cutter comprising a horizontal widely e.\;tended bottom engaging skid on which the sideof said machine is immovably secured.

T. In a mining apparatus` a mining mnchine Vnormally cutting on its own bottom and-having apivoted cutter bar, means for swinging said bar including a flexible element, and supporting means for said machine comprising a skid to which the latter is rigidly secured having an opening through which said flexible element passes.

8. In a mining apparatus. a mining nmchine normally cutting on its own bottom and having: a pivoted cutter bar, and means Yfor operating` ,aid machine on its side with its bottom in an elevated position comprising a bottom plate forming a bottom engagsliding; support, an intermediate Support attached thereto, and a plurality of longitudinalliY spaced bracing,l members disposed between said machine and said bottoni plate.

it ln a mining),l apparatus, a mining machine normal ttino on its own bottom, and means i naid machine on its eide with its bottoni in a vertical plane comn prieioo :i bottom plate :torming a bottom engaifino eiiding support, un intermediate eopport attached thereto and to the eide ot raid machine, a longitudinally extending bracin member engaging eaid bottom plate und said eupport, and a plurality ot longtituN dinally spaced 'bracing members secured to eaid machine and to eaid bottom plate.

l()w ln a mining apparatus, a miningl machine normally cutting on its own bottom, machine being provided with an elon ed cutter bar having cutting@` elemente arranged to cut a hert' to admit eaid bar, mennel tor operatingI said machine with ite bottom and cutter bar in a. Vertical plane comprising; a bottom engaginp,` eind to which the i, fle ot the machine `is rigidlyY secured, and

is iter 'feeding said machine .including` e i ile element, a toed operating; member ro tutable on a. horizontal anni, and guiding,1 means lor said tleXible n'iember disposed ad jacent Said iteed operatingl member.

ll, lin a mining appatatus, a mining machine normallyY cutting; on its own bottom and haiinp` a pivoted cutter bar, means for feeding? said machine and ller swinging Said bar ineludine,i a flexible element, supporting menne for said machine whereby the latter muy be operated with its bottom in a verti cal plane, said supporting means providing an. opening therethrough beneath said 1nachine, and means whereby eaid flexible ele ment may be eelectitfeljiT extended rearwardly throupgh said opening; and attached to said bar to swing the latter or torwardljT to a lined extraneous abutment to toed the mach ine longitudinally,

l2. ln a mining; alniaratue, a horizontal widely ei-:tended eltid elidable on the mine bottom, a mining machine immovably Secured in an ole ,fed position on eaid ehid and provided with an angnlurly adjustable elongated cutter bar mounted tor swinging movement in a TVertical plane eatendingV lonitudinall-y ot said Sltid and between the lateral limits thereof, id cutter bar being provided' with eut 'ne' elemente arranged to cut a hert to admit eaid bar, and means operated by the machine to :teed the later over the mine bottom and to owing eaid baru lo. ln a mining; apparatue, a horizontal 'Widely extended eltid elidabie on the mine bottom, a mining; machine immovably secured in :in elevated position on said skid and 'inet/idoli with an angularly adjustable elongated cuttei bar mounted tor swinging movement in a Vertical plane extendinfmi1 lon aitudinully oit Said elid and between the lati limits thereozt, eaid cutter bar beine)r rorided with cutting; elements arranged to cut a. kort to admit said bar, and means operated by the machine includingl a tleitiblo element eelectiveliff connectible to Said bar to eitiect ewingggi e movement thereot or to a iixed eX- troneo-ns) abutment to eiloot leedine more ment oi the machine over the mine bottom. In teetinioi'iy Wbereol l ailiX my signature.

MORRIS P. HOLMES.

CERTIFMATE 0F GRREKMQQ Paini Nm 1, 654, 218. @fammi iwaieiembm Si?? W2? J iii is hereby certified ihm eww 299mm ahw@ mi hemd patent requiring cwrecfimi E i2, im the word "imei" EMQW; hfemiii iim be wi this wrrtima v 0i iii@ in im@ Patent iiie.,

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